8 files changed, 27 insertions, 41 deletions

diff --git a/drivers/media/dvb/dvb-core/dvb_frontend.c b/drivers/media/dvb/dvb-core/dvb_frontend.c
index 57b34cda99f..832116d0925 100644
--- a/drivers/media/dvb/dvb-core/dvb_frontend.c
+++ b/drivers/media/dvb/dvb-core/dvb_frontend.c
@@ -1105,6 +1105,8 @@ int dvb_unregister_frontend(struct dvb_frontend* fe)
         mutex_lock(&frontend_mutex);
         dvb_unregister_device (fepriv->dvbdev);
         dvb_frontend_stop (fe);
+        if (fe->ops.release_sec)
+                fe->ops.release_sec(fe);
         if (fe->ops.tuner_ops.release) {
                 fe->ops.tuner_ops.release(fe);
                 if (fe->ops.i2c_gate_ctrl)
diff --git a/drivers/media/dvb/frontends/isl6421.c b/drivers/media/dvb/frontends/isl6421.c
index 58c34db3107..0fc18f5a716 100644
--- a/drivers/media/dvb/frontends/isl6421.c
+++ b/drivers/media/dvb/frontends/isl6421.c
@@ -42,12 +42,11 @@ struct isl6421 {
         u8                      override_and;
         struct i2c_adapter      *i2c;
         u8                      i2c_addr;
-        void                    (*release_chain)(struct dvb_frontend* fe);
 };
 
 static int isl6421_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
 {
-        struct isl6421 *isl6421 = (struct isl6421 *) fe->misc_priv;
+        struct isl6421 *isl6421 = (struct isl6421 *) fe->sec_priv;
         struct i2c_msg msg = {  .addr = isl6421->i2c_addr, .flags = 0,
                                 .buf = &isl6421->config,
                                 .len = sizeof(isl6421->config) };
@@ -75,7 +74,7 @@ static int isl6421_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage
 
 static int isl6421_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg)
 {
-        struct isl6421 *isl6421 = (struct isl6421 *) fe->misc_priv;
+        struct isl6421 *isl6421 = (struct isl6421 *) fe->sec_priv;
         struct i2c_msg msg = {  .addr = isl6421->i2c_addr, .flags = 0,
                                 .buf = &isl6421->config,
                                 .len = sizeof(isl6421->config) };
@@ -93,31 +92,26 @@ static int isl6421_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg)
 
 static void isl6421_release(struct dvb_frontend *fe)
 {
-        struct isl6421 *isl6421 = (struct isl6421 *) fe->misc_priv;
-
         /* power off */
         isl6421_set_voltage(fe, SEC_VOLTAGE_OFF);
 
-        /* free data & call next release routine */
-        fe->ops.release = isl6421->release_chain;
-        kfree(fe->misc_priv);
-        fe->misc_priv = NULL;
-        if (fe->ops.release)
-                fe->ops.release(fe);
+        /* free */
+        kfree(fe->sec_priv);
+        fe->sec_priv = NULL;
 }
 
-int isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
+struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
                    u8 override_set, u8 override_clear)
 {
         struct isl6421 *isl6421 = kmalloc(sizeof(struct isl6421), GFP_KERNEL);
         if (!isl6421)
-                return -ENOMEM;
+                return NULL;
 
         /* default configuration */
         isl6421->config = ISL6421_ISEL1;
         isl6421->i2c = i2c;
         isl6421->i2c_addr = i2c_addr;
-        fe->misc_priv = isl6421;
+        fe->sec_priv = isl6421;
 
         /* bits which should be forced to '1' */
         isl6421->override_or = override_set;
@@ -128,19 +122,17 @@ int isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr
         /* detect if it is present or not */
         if (isl6421_set_voltage(fe, SEC_VOLTAGE_OFF)) {
                 kfree(isl6421);
-                fe->misc_priv = NULL;
-                return -EIO;
+                return NULL;
         }
 
         /* install release callback */
-        isl6421->release_chain = fe->ops.release;
         fe->ops.release = isl6421_release;
 
         /* override frontend ops */
         fe->ops.set_voltage = isl6421_set_voltage;
         fe->ops.enable_high_lnb_voltage = isl6421_enable_high_lnb_voltage;
 
-        return 0;
+        return fe;
 }
 EXPORT_SYMBOL(isl6421_attach);
 
diff --git a/drivers/media/dvb/frontends/isl6421.h b/drivers/media/dvb/frontends/isl6421.h
index 675f80a19b9..b5deacfe6d2 100644
--- a/drivers/media/dvb/frontends/isl6421.h
+++ b/drivers/media/dvb/frontends/isl6421.h
@@ -40,7 +40,7 @@
 #define ISL6421_DCL     0x40
 
 /* override_set and override_clear control which system register bits (above) to always set & clear */
-extern int isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
+extern struct dvb_frontend *isl6421_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 i2c_addr,
                           u8 override_set, u8 override_clear);
 
 #endif
diff --git a/drivers/media/dvb/frontends/lnbp21.c b/drivers/media/dvb/frontends/lnbp21.c
index e933edc8dd2..37bba32f29a 100644
--- a/drivers/media/dvb/frontends/lnbp21.c
+++ b/drivers/media/dvb/frontends/lnbp21.c
@@ -40,12 +40,11 @@ struct lnbp21 {
         u8                      override_or;
         u8                      override_and;
         struct i2c_adapter      *i2c;
-        void                    (*release_chain)(struct dvb_frontend* fe);
 };
 
 static int lnbp21_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
 {
-        struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->misc_priv;
+        struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->sec_priv;
         struct i2c_msg msg = {  .addr = 0x08, .flags = 0,
                                 .buf = &lnbp21->config,
                                 .len = sizeof(lnbp21->config) };
@@ -73,7 +72,7 @@ static int lnbp21_set_voltage(struct dvb_frontend *fe, fe_sec_voltage_t voltage)
 
 static int lnbp21_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg)
 {
-        struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->misc_priv;
+        struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->sec_priv;
         struct i2c_msg msg = {  .addr = 0x08, .flags = 0,
                                 .buf = &lnbp21->config,
                                 .len = sizeof(lnbp21->config) };
@@ -91,29 +90,24 @@ static int lnbp21_enable_high_lnb_voltage(struct dvb_frontend *fe, long arg)
 
 static void lnbp21_release(struct dvb_frontend *fe)
 {
-        struct lnbp21 *lnbp21 = (struct lnbp21 *) fe->misc_priv;
-
         /* LNBP power off */
         lnbp21_set_voltage(fe, SEC_VOLTAGE_OFF);
 
-        /* free data & call next release routine */
-        fe->ops.release = lnbp21->release_chain;
-        kfree(fe->misc_priv);
-        fe->misc_priv = NULL;
-        if (fe->ops.release)
-                fe->ops.release(fe);
+        /* free data */
+        kfree(fe->sec_priv);
+        fe->sec_priv = NULL;
 }
 
-int lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear)
+struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear)
 {
         struct lnbp21 *lnbp21 = kmalloc(sizeof(struct lnbp21), GFP_KERNEL);
         if (!lnbp21)
-                return -ENOMEM;
+                return NULL;
 
         /* default configuration */
         lnbp21->config = LNBP21_ISEL;
         lnbp21->i2c = i2c;
-        fe->misc_priv = lnbp21;
+        fe->sec_priv = lnbp21;
 
         /* bits which should be forced to '1' */
         lnbp21->override_or = override_set;
@@ -124,19 +118,17 @@ int lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_
         /* detect if it is present or not */
         if (lnbp21_set_voltage(fe, SEC_VOLTAGE_OFF)) {
                 kfree(lnbp21);
-                fe->misc_priv = NULL;
-                return -EIO;
+                return NULL;
         }
 
         /* install release callback */
-        lnbp21->release_chain = fe->ops.release;
         fe->ops.release = lnbp21_release;
 
         /* override frontend ops */
         fe->ops.set_voltage = lnbp21_set_voltage;
         fe->ops.enable_high_lnb_voltage = lnbp21_enable_high_lnb_voltage;
 
-        return 0;
+        return fe;
 }
 EXPORT_SYMBOL(lnbp21_attach);
 
diff --git a/drivers/media/dvb/frontends/lnbp21.h b/drivers/media/dvb/frontends/lnbp21.h
index 047a4ab68c0..8c2df67d81e 100644
--- a/drivers/media/dvb/frontends/lnbp21.h
+++ b/drivers/media/dvb/frontends/lnbp21.h
@@ -40,6 +40,6 @@
 #include <linux/dvb/frontend.h>
 
 /* override_set and override_clear control which system register bits (above) to always set & clear */
-extern int lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear);
+extern struct dvb_frontend *lnbp21_attach(struct dvb_frontend *fe, struct i2c_adapter *i2c, u8 override_set, u8 override_clear);
 
 #endif
diff --git a/drivers/media/dvb/ttpci/av7110.c b/drivers/media/dvb/ttpci/av7110.c
index 4506165c5de..fa0bed6779b 100644
--- a/drivers/media/dvb/ttpci/av7110.c
+++ b/drivers/media/dvb/ttpci/av7110.c
@@ -2219,7 +2219,7 @@ static int frontend_init(struct av7110 *av7110)
                                 av7110->fe->ops.tuner_ops.set_params = alps_bsbe1_tuner_set_params;
                                 av7110->fe->tuner_priv = &av7110->i2c_adap;
 
-                                if (lnbp21_attach(av7110->fe, &av7110->i2c_adap, 0, 0)) {
+                                if (lnbp21_attach(av7110->fe, &av7110->i2c_adap, 0, 0) == NULL) {
                                         printk("dvb-ttpci: LNBP21 not found!\n");
                                         if (av7110->fe->ops.release)
                                                 av7110->fe->ops.release(av7110->fe);
diff --git a/drivers/media/dvb/ttpci/budget-ci.c b/drivers/media/dvb/ttpci/budget-ci.c
index ffbbb3e34be..3d9a8db61f1 100644
--- a/drivers/media/dvb/ttpci/budget-ci.c
+++ b/drivers/media/dvb/ttpci/budget-ci.c
@@ -1044,7 +1044,7 @@ static void frontend_init(struct budget_ci *budget_ci)
                         budget_ci->budget.dvb_frontend->tuner_priv = &budget_ci->budget.i2c_adap;
 
                         budget_ci->budget.dvb_frontend->ops.dishnetwork_send_legacy_command = NULL;
-                        if (lnbp21_attach(budget_ci->budget.dvb_frontend, &budget_ci->budget.i2c_adap, LNBP21_LLC, 0)) {
+                        if (lnbp21_attach(budget_ci->budget.dvb_frontend, &budget_ci->budget.i2c_adap, LNBP21_LLC, 0) == NULL) {
                                 printk("%s: No LNBP21 found!\n", __FUNCTION__);
                                 if (budget_ci->budget.dvb_frontend->ops.release)
                                         budget_ci->budget.dvb_frontend->ops.release(budget_ci->budget.dvb_frontend);
diff --git a/drivers/media/dvb/ttpci/budget.c b/drivers/media/dvb/ttpci/budget.c
index 863dffb4ed8..c21ee5a05fe 100644
--- a/drivers/media/dvb/ttpci/budget.c
+++ b/drivers/media/dvb/ttpci/budget.c
@@ -420,7 +420,7 @@ static void frontend_init(struct budget *budget)
                 budget->dvb_frontend = s5h1420_attach(&s5h1420_config, &budget->i2c_adap);
                 if (budget->dvb_frontend) {
                         budget->dvb_frontend->ops.tuner_ops.set_params = s5h1420_tuner_set_params;
-                        if (lnbp21_attach(budget->dvb_frontend, &budget->i2c_adap, 0, 0)) {
+                        if (lnbp21_attach(budget->dvb_frontend, &budget->i2c_adap, 0, 0) == NULL) {
                                 printk("%s: No LNBP21 found!\n", __FUNCTION__);
                                 goto error_out;
                         }